Physical Properties of U-Profile Glass

Physical Properties of U-Profile Glass
1. Mechanical strength: 700–900 N/mm²; Tensile strength: 30–50 N/mm²;
2. Mohs hardness: 6–7;
3. Modulus of elasticity: 60,000–70,000 N/mm²;
4. Linear expansion coefficient: (per 1°C rise in temperature) 75–85 × 10⁻⁷;
5. Chemical stability: 0.18 mg;
6. Light transmission: Standard fine-textured glass-single-layer installation 88%, double-layer installation 80%;
7. Heat transfer coefficient: Single-layer installation 4.90 W/m²·K, double-layer installation 2.35 W/m²·K;
8. Sound insulation: Single-layer installation 27 dB, double-layer installation 38 dB;
9. Fire resistance rating: 0.75 hours;